Which of the following is the best estimate for -2 · 7.89 + ÷ (-4.17)?

Answer rounded to nearest hundredth is 3.78

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

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